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Finding the Fourth Proportional to 549,622.14, 758,439 and 307,863.84

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Solution

The fourth proportional to 549,622.14, 758,439 and 307,863.84 is: 424,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,622.14 : 758,439 = 307,863.84 : x
  2. Step 2: Convert to fraction form
    549,622.14/758,439 = 307,863.84/x
  3. Step 3: Cross multiply
    549,622.14x = 758,439 × 307,863.84
  4. Step 4: Simplify right side
    549,622.14x = 233,495,942,945.76
  5. Step 5: Solve for x
    x = 233,495,942,945.76/549,622.14
  6. Step 6: Final answer
    x = 424,829.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.